#21571D
Closest named color: Navy Green (#35530A). oklch(40.6% 0.106 142.2), rgb(33, 87, 29).
Aa
White text reads best on this color (8.58:1).
About this color
#21571D is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.106 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Navy Green (#35530A), ΔE 0.022 away. White text reads best on it, at 8.58:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Navy Green (#35530A) |
| Black text | 2.44:1 |
| White text | 8.58:1 |
Values
| HEX | #21571D |
| RGB | rgb(33, 87, 29) |
| HSL | hsl(116, 50%, 23%) |
| OKLCH | oklch(40.6% 0.106 142.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #21571D | 8.58:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #21571D | 2.44:1 | Fails | Lc 14.8 | Not readable |
| #21571D text on white | 8.58:1 | AAA | Lc 89.2 | Fine for body text |
| #21571D text on black | 2.44:1 | Fails | Lc -13.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE2
oklch(93.6% 0.018 142.8)
-
Step 200
200
#CDDFCB
oklch(88.5% 0.033 142.5)
-
Step 300
300
#AACBA7
oklch(80.8% 0.061 142.8)
-
Step 400
400
#7CB077
oklch(70.6% 0.098 142.4)
-
Step 500
500
#599C53
oklch(63% 0.126 142.2)
-
Step 600
600
#3C8736
oklch(55.7% 0.138 142.2)
-
Step 700
700
#2E7229
oklch(49.1% 0.127 142.2)
-
Step 800
800 (this color)
#21571D
oklch(40.6% 0.106 142.2)
-
Step 900
900
#254C22
oklch(37.6% 0.082 142.4)
-
Step 950
950
#162D14
oklch(27% 0.053 142.3)
#21571D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #594F16 | 0.075 |
| Deuteranopia (no green cones) | #524A22 | 0.076 |
| Tritanopia (no blue cones) | #19544B | 0.070 |
| Achromatopsia (no color) | #4C4C4C | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21571D
#21571D
oklch(40.6% 0.106 142.2)
- #63336B
#63336B
oklch(40.6% 0.106 321.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #21571D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Green #35530A ΔE 0.022
- Deep Green #02590F ΔE 0.024
- Forest #0B5509 ΔE 0.024
- Pine #2B5D34 ΔE 0.034
- Spruce #0A5F38 ΔE 0.035
- Bottle Green #044A05 ΔE 0.052
- Dark Green #006400 ΔE 0.052
- Darkgreen #054907 ΔE 0.054
Use #21571D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.